.... ringing in ears erratic heart beat LONG-TERM EFFECTS Hand tremors less concern about appearance sores/rash around mouth and nose fatigue, muscle fatigue weight loss electrolyte (salt) imbalance cardiac arrest permanent damage to nervous system brain, liver, kidney, blood, and bone marrow damage impaired respiratory system impaired coordination and intelligence death by asphyxiation/suffocation EFFECTS ON PERSONALITY Psychological effects occur rapidly because the substance travels directly to the brain after passing through the lungs and the left side of the heart. Other effects are: Anxiety, irritability or excitability poor memory, confusion moody, restless activity ....

.... given to these plates when cleaning them. Make sure that a gap has not formed at the end of the plate. If there is a gap, rags and other particles may pass right by. If in doubt of the condition of the plate, it should be renewed. The cost of a single plate is much cheaper than the cost of cleaning out an entire clogged system. All gasket surfaces must be checked closely to ensure a proper seal. Our ship has a high pressure lube oil system. Because of this, basket type strainers are used. Lube oil systems are equipped with a wide variety of strainers. It is important to operate these strainers at all times to prevent clogging. Aboard our ship, we have Hayward Pl ....

.... the air. The first practical parachute was invented in the 1780s. They have been used as lifesaving devices for airplane pilots and passengers, as a way for armies to transport troops behind enemy lines, and to decelerate spacecraft, airplanes, and cars. In the 1970s sport parachuting, or , became popular. A parachute is about 7.3 m (about 24 ft) in diameter and made of about 25 panels of nylon or silk. Shroud lines, sewn into the panels' seams, connect to metal rings on the parachutist's harness. The parachutist wears the folded parachute in a canvas pack that flies open when he or she pulls the ripcord. Parachutists pull the ripcord about three seconds after they jump, to ....

.... involved a spermicide called nonoxynol-9. Results were mixed. It seemed to give results in Cameroon and Zambia, but some Kenyan prostitutes developed ulcers, which might make infection easier rather than more difficult. But a prostitute's sexual life is hardly typical; and other products or other methods of use might prove better. For any product to be acceptable, says Eka Esu-Williams, the Nigerian president of the Society for Women and , it must be possible to separate the spermicidal or contraceptive function from that of killing harmful micro-organisms such as HIV. In third-world countries, many women (and still more men) value protection against AIDS, but not against p ....

.... has on public accounting-- the model of perfect competition versus the model of monopolistic compet ition. Secondly, the relationship between firm size and advertising expenditures. Thirdly, the effect of advertising on firm specialization, the implications of client turnover on public accounting practice. Before making the comparison, a brief explanation why the two models are chosen is in order. Monopolistic competition has been chosen for the pre-advertising era because it most closely resembles the market structure in an extreme sense. The elements o f monopolistic competition are as follows: product differentiation, the presence of lar ....

.... divided into four quarters, each consisting of 15 minutes of playing time. Between the first two quarters and the second two quarters is a rest period, usually lasting about 15 minutes. The clocks stop at the end of each quarter, when particular events occur, and when designated by the officials. Two teams of 11 players play football. Each team tries to move the ball down the field to score in the end zone defended by its opponent. The team in possession of the ball is called the offense, and the team defending is called the defense. Players involved in kicking situations are known as the special teams. The 11 players of the offensive team are divided into 7 linemen, who play ....

.... on the visual properties of the eye, realism can be obtained by providing a high-resolution 'area of interest' insert within a large, low-resolution field of view. If the image-generating computer 'knows' where the pilot's fixation is, it mage there. The technology to make this possible was developed by a research team headed by Professor Richard Frecker and Professor Moshe Eizenman. The work was carried out in collaboration with CAE Electronics Ltd. of Montreal with financial support from the Natural Sciences and Engineering Research Council of Canada. Their eye-tracker can record and analyze accurately up to 500 eye positions per second. The system works by means of captu ....

.... that the experience is not occurring in physical reality, but is a dream. Often this realization is triggered by the dreamer noticing some impossible or unlikely occurrence in the dream, such as meeting a person who is dead, or flying with or without wings. Sometimes people become lucid without noticing any particular clue in the dream; they just suddenly realize that they are in a dream. A minority of lucid dreams (about 10 percent) are the result of returning to REM sleep directly from an awakening with unbroken reflective consciousness (LaBerge, 1985). These types of lucid dreams occur most often during daytime napping. If the napper has been REM deprived from a previo ....